Posterize Effect - Imaging Lingo

 

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This image effect can create some cool postering type effects on an image similar to what you'd see with Photoshop's posterize effect, but with much more options.

-- Posterize Image Effect -- ©2005 by Josh Chunick (josh@chunick.com) -- This code is free to use in commercial applications -- or however you want. If you use this code you -- must keep the comments, including this message, -- intact. Feel free to add any changes or make -- improvements. -- imageRef is an image object -- bitDepth can be 1,2,4,8,16, 32 -- thePalette can be: #systemwin, #systemmac, -- #rainbow, #web216, #metallic, #pastels, #vivid, #ntsc -- theDither can be: true, false, 1215, 1969 on posterize (imageRef, bitDepth, thePalette, theDither)   posterizedImage = image (imageRef.width, imageRef.height, bitDepth, thePalette)   posterizedImage.copyPixels (imageRef, imageRef.rect, imageRef.rect, [#dither: theDither])   return posterizedImage end